There's a way to test for that: People with actual opinions will engage in conversation, whereas shills can't, because, one, their scripts aren't that long, two

There's a way to test for that: People with actual opinions will engage in conversation, whereas shills can't, because, one, their scripts aren't that long, two, they aren't paid for that kind of thing, and, most importantly, they can't risk the conversation spinning out of control.